Subtract 15/84 from 28/24, Solve 1 4/24

Subtract 15/84 from 28/24

1^st number: 1 4/24, 2^nd number: 15/84

28/24 - 15/84 is 83/84.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 84 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 24 × 7 = 168,
28/24 = 28 × 7/24 × 7 = 196/168
Likewise, for the 2nd fraction, since 84 × 2 = 168,
15/84 = 15 × 2/84 × 2 = 30/168
Subtract the two like fractions:
196/168 - 30/168 = 196 - 30/168 = 166/168
After reducing the fraction, the answer is 83/84

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad